WASHINGTON - NOVEMBER 14: Retired U.S. Army Col. Lawrence Wilkerson (2nd L), former chief of staff and senior advisor to Secretary of State Colin Powell, delivers his opening statement while testifying to the House Subcommittee on National Security and Foreign Affiars on Captiol Hill November 14, 2007 in Washington, DC. The hearing was titled "Regional and Global Consequences of U.S. Military Action in Iran" and was the third in a serise, "Iran: Realities, Options, and Consequences." All the witnesses that testified were uniform in their belief that attacking Iran would be detrimental to American security and foreign policy. (Photo by Chip Somodevilla/Getty Images)